The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 2018
Filed:
May. 21, 2015
Fdk Corporation, Tokyo, JP;
FDK CORPORATION, Tokyo, JP;
Abstract
An uninterruptible power source devicein the present invention includes: an input-output terminalthat is connected in parallel with a power source linethrough which electric power is supplied from an external power sourceto a loading device; a battery unitwhose rated voltage is lower than a voltage Vof the external power source; a DC/DC converterthat converts a voltage Vof the battery unitinto a voltage Vequivalent to a difference between the voltage Vof the external power sourceand the voltage Vof the battery unit; a charging circuitthat charges the battery unitthrough the input-output terminalwith the electric power of the external power source; and a discharging circuitthat performs discharge to the loading devicethrough the input-output terminalat a voltage resulting from adding an output voltage Vof the DC/DC converterto the voltage Vof the battery unit, at the time of electric power interruption of the external power source